108 lines
2.4 KiB
C#
108 lines
2.4 KiB
C#
namespace Org.BouncyCastle.Asn1.Cms;
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public class AuthEnvelopedDataParser
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{
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private Asn1SequenceParser seq;
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private DerInteger version;
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private IAsn1Convertible nextObject;
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private bool originatorInfoCalled;
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public DerInteger Version => version;
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public AuthEnvelopedDataParser(Asn1SequenceParser seq)
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{
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this.seq = seq;
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version = (DerInteger)seq.ReadObject();
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}
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public OriginatorInfo GetOriginatorInfo()
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{
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originatorInfoCalled = true;
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject is Asn1TaggedObjectParser && ((Asn1TaggedObjectParser)nextObject).TagNo == 0)
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{
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Asn1SequenceParser asn1SequenceParser = (Asn1SequenceParser)((Asn1TaggedObjectParser)nextObject).GetObjectParser(16, isExplicit: false);
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nextObject = null;
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return OriginatorInfo.GetInstance(asn1SequenceParser.ToAsn1Object());
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}
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return null;
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}
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public Asn1SetParser GetRecipientInfos()
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{
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if (!originatorInfoCalled)
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{
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GetOriginatorInfo();
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}
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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Asn1SetParser result = (Asn1SetParser)nextObject;
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nextObject = null;
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return result;
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}
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public EncryptedContentInfoParser GetAuthEncryptedContentInfo()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject != null)
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{
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Asn1SequenceParser asn1SequenceParser = (Asn1SequenceParser)nextObject;
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nextObject = null;
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return new EncryptedContentInfoParser(asn1SequenceParser);
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}
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return null;
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}
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public Asn1SetParser GetAuthAttrs()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject is Asn1TaggedObjectParser)
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{
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IAsn1Convertible asn1Convertible = nextObject;
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nextObject = null;
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return (Asn1SetParser)((Asn1TaggedObjectParser)asn1Convertible).GetObjectParser(17, isExplicit: false);
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}
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return null;
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}
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public Asn1OctetString GetMac()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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IAsn1Convertible asn1Convertible = nextObject;
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nextObject = null;
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return Asn1OctetString.GetInstance(asn1Convertible.ToAsn1Object());
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}
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public Asn1SetParser GetUnauthAttrs()
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{
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if (nextObject == null)
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{
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nextObject = seq.ReadObject();
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}
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if (nextObject != null)
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{
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IAsn1Convertible asn1Convertible = nextObject;
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nextObject = null;
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return (Asn1SetParser)((Asn1TaggedObjectParser)asn1Convertible).GetObjectParser(17, isExplicit: false);
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}
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return null;
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}
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}
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